<template>
  <div class="settings-container">
    <div class="app-container">
      <el-card>
        <el-tabs>
          <!-- 放置页签 -->
          <el-tab-pane label="角色管理">
            <!-- 新增角色按钮 -->
            <el-row style="height: 60px">
              <el-button
                icon="el-icon-plus"
                size="small"
                type="primary"
                @click="showDialog = true"
              >新增角色</el-button>
            </el-row>
            <!-- 表格 -->
            <el-table :data="list">
              <el-table-column label="序号" width="120" type="index" />
              <el-table-column label="角色名称" width="240" prop="name" />
              <el-table-column label="描述" prop="description" />
              <el-table-column label="操作">
                <template v-slot="scope">
                  <el-button size="small" type="success">分配权限</el-button>
                  <el-button size="small" type="primary" @click="hEdit(scope.row)">编辑</el-button>
                  <el-button
                    size="small"
                    type="danger"
                    @click="hDel(scope.row.id)"
                  >删除</el-button>
                </template>
              </el-table-column>
            </el-table>

            <el-row
              type="flex"
              justify="center"
              align="middle"
              style="height: 60px"
            >
              <!-- 分页组件 -->
              <el-pagination
                background
                :page-size="pageParams.pagesize"
                layout="prev, pager, next"
                :total="total"
                :current-page.sync="pageParams.page"
                @current-change="hCurrentChange"
              />
            </el-row>
          </el-tab-pane>
        </el-tabs>
      </el-card>
    </div>
    <!-- 新增弹框 -->
    <el-dialog
      title="编辑弹层"
      :close-on-click-modal="false"
      :close-on-press-escape="false"
      :visible.sync="showDialog"
    >
      <el-form
        ref="roleForm"
        :model="roleForm"
        :rules="rules"
        label-width="100px"
      >
        <el-form-item label="角色名称" prop="name">
          <el-input v-model="roleForm.name" />
        </el-form-item>
        <el-form-item label="角色描述" prop="description">
          <el-input v-model="roleForm.description" />
        </el-form-item>
      </el-form>
      <!-- 底部 -->
      <el-row slot="footer" type="flex" justify="center">
        <el-col :span="6">
          <el-button size="small">取消</el-button>
          <el-button
            size="small"
            type="primary"
            @click="hSubmit"
          >确定</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script>
import { getRole, deleteRole, addRole, updateRole } from '@/api/settings'

export default {
  data() {
    return {
      isEdit: false, // 是否是编辑
      showDialog: false,
      roleForm: {
        name: '',
        descripton: ''
      },
      rules: {
        name: [
          { required: true, message: '角色名称不能为空', trigger: 'blur' }
        ],
        description: [
          { required: true, message: '描述内容不能为空', trigger: 'blur' }
        ]
      },
      list: [],
      pageParams: {
        page: 1, // 查询第一页
        pagesize: 2 // 每页两条
      },
      total: 0 // 总的数据条数
    }
  },
  created() {
    this.loadRole()
  },
  methods: {
    async loadRole() {
      const res = await getRole(this.pageParams)
      console.log('获取角色', res.data.rows)
      this.list = res.data.rows
      this.total = res.data.total
    },

    // 用户点击了页码
    hCurrentChange(curPage) {
      // curPage点击的第几页
      // 1. 更新页码
      this.pageParams.page = curPage
      // 2. 重发请求
      this.loadRole()
    },

    // 用户点击了删除
    hDel(id) {
      // // 确认框
      // this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
      //   confirmButtonText: '确定',
      //   cancelButtonText: '取消',
      //   type: 'warning'
      // })
      //   .then(() => {
      this.doDel(id)
      //   })
      //   .catch((err) => {
      //     console.log(err)
      //     this.$message({
      //       type: 'info',
      //       message: '已取消删除'
      //     })
      //   })
    },
    async doDel(id) {
      try {
        const res = await deleteRole(id)
        console.log(res)
        // 提示
        this.$message.success('删除成功')
        // 如果当前表格中只有一条，删除之后自动请求上一页数据
        if (this.list.length === 1) {
          this.pageParams.page--
          if (this.pageParams.page <= 0) {
            this.pageParams.page = 1
          }
        }
        // 重新请求
        this.loadRole()
      } catch (err) {
        console.log(err)
        this.$message.error('删除失败')
      }
    },

    async doAdd() {
      try {
        await addRole(this.roleForm)
        this.$message.success('添加成功')
        this.showDialog = false
        // 让用户看到最后一页
        this.total++
        this.pageParams.page = Math.ceil(this.total / this.pageParams.pagesize)
        // 重发请求
        this.loadRole()
      } catch (err) {
        this.$message.error('添加失败')
        console.log(err)
      }
    },

    // 用户点击了编辑
    hEdit({ id, name, description }) {
      // 1. 把当前的数据直接给表单
      this.roleForm = { id, name, description }
      // 2. 显示弹层
      this.showDialog = true
      // console.log(row)
      this.isEdit = true
    },

    async doEdit() {
      try {
        const res = await updateRole(this.roleForm)
        console.log(res)
        this.loadRole()
        this.$message.success('编辑成功')
        this.showDialog = false
      } catch (err) {
        this.$message.error('编辑失败')
        console.log(err)
      }
    },
    // 用户点击了保存
    hSubmit() {
      console.log('提交')
      // 手动兜底校验
      this.$refs.roleForm.validate(valid => {
        if (valid) {
          this.isEdit ? this.doEdit() : this.doAdd()
        }
      })
    }
  }
}
</script>

